.top {
  font-weight: bold;
  height: 50rem;
  line-height: 50rem;
  padding: 0 30rem;
  border-bottom: 1rem solid black;
}

.tab {
  margin-left: 20rem;
}

.tab li {
  height: 40rem;
  line-height: 40rem;
}

.bot {
  height: calc(100% - 50rem);
  background-color: #f7f7f7;
  overflow-y: auto;
}
